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A. MILLER & J. N. KAILER.

CLOVER HULLER.

No. 327,812. Patented 001;. 6, 1885.

WITNESSES m Wick-N709 I MQ 52% UNTTEE STATES PATENT OEEIcE.

ABRAHAM MILLER AND JOHN N. KAILER, OF NEWARK, OHIO, ASSIGNORS TO THENEWARK MACHINE COMPANY, OF SAME PLACE.

CLOVER-HULLER.

SPECIFICATION forming part of Letters Patent No. 327,812, dated October6, 1885.

Application filed February 11, 1884. ScrialNo. 120,380. (No model.)

To all whom it may concern.-

Be it known that we, ABRAHAM MILLER and JOHN N. KAILER, of Newark,county of Licking, State of Ohio, have invented a new and usefulImprovement in Glover-Hullers; and we declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use it,reference being had to the accompanying drawings,

which form a part of this specification- Our invention consists of thecombinations of devices and appliances, hereinafter specified, and moreparticularlypointed outin the claims.

In the manufacture of elover-hullers it has been customary to locate alarge number of rubbers or hullingteeth in the concave of thehulling-cylinder to operate in connection with the projecting teeth orrubbers on the surface of the hulling-cylinder itself. It is, however, amatter of considerable difficulty to effect the separation of the smallclover-seeds from the tough pods containing them, and this is especiallytrue if the heads are not thoroughly cured and perfectly dry. For thispurpose we have heretofore employed detainers lo cated between the lagsof the holler-concave. Our present invention relates to the constructionof the said detainers.

In the drawings Figure 1 represents a concave with the detainers betweenthe lags. Fig. 2 represents the same in longitudinal section showing therelative position of the cylinder-teeth as they pass the detainers. Fig.

3 is a separate view, in side elevation, of one of the detainers; Fig.4, a cross-section of the same. Fig. 5 represents avariation in whichthe bottom of the throat is square; Fig. 6, another variation in whichthe bottom is rounded and the ends square. Fig. 7 is a view of the toolemployed in cutting the detainer. Fig. 8 is a view of a strip ofmaterial of a breadth sufficient for two detainers, showing the methodwe pursue in cutting the detainer.

We have found that when these detainers are made with square edges atthe top, these edges are apt to come in contact with the bases of theteeth, and so be soon destroyed or damaged. WVe have also found thatwhen the bottoms of the throats are made square they do not sufficientlydetain the pods to effect a thorough hulling, especially with dampclover; and again, when out square at this point, the tongues of thedetainers are apt to flex and soon break off across the lower edge. Itis our purpose to overcome these difficulties.

A represents the lags of the huller-concave;

B, the detainers; O, the hulling-cylinder; D, hulling teeth or rubbers;E, rivets; F, washers.

G is the handle, and G the blade, of the tool by which the detainers arecut. The blade is of course made to conform to the peculiar shape of thethroat of the detainer and the tongues.

The detainers we prefer to make of leather. 6 5 If the leather is ofsufficient thickness, it may be made of asingle ply of leather. IVeprefer usually, however, to make the detainers of two plies of leatherglued together, and with rivets G passed through the tongues and headedbeyond the washer G. In this way we are enabled to employ any part of ausual hide of leather, whereas if the detainer is made of a single plyof leather there is but a small part of a hide that possesses leather ofsufficient thickness. \Ve also find the two plies to make a better and astiffer detainer.

The detainer is composed of tongues B, with intervening throats B. Thetongues may be made rounded at the top, so as to avoid contact with theadjacent bases of the teeth in passing, and when so made the throats maybe either square or rounded at the bottom. So, also, when the throatsare rounded at the bottom they serve the better to detain the seed andto strengthen this part of the tongue, and when so made the extremitiesof the tongue may be made either square or round. Ve prefer, however, tomake the extremities of the tongues and thebottoms of the throats bothgo rounded, and that is the way in which we usually employ them. Aportion, 13 is preserved intact for insertion between the lags of theconcave.

These detainers are not necessarily made of 9 5 leather. They may bemade of rubber or of ordinary engine-packing, though we prefer leather.So,also,they may be made from a thin sheet of wood, with the tongueslying in the direction of the grain of the wood; or they I00 may be madeof sheet metal.

These detainers may be cut by any suitable mechanism; but we prefer toemploy the tool G G as a quick and ready means for doing the work, andwe prefer to cut the lags from pieces of double the breadth required,since in that way there is no waste ofgthe material.

We would also have it understood that instead of roundin g theextremities of the tongues and the bottoms of the throats, they may bebeveled off upon right lines instead of curved lines, the effect beingin either case to build up the corners at the bottom of the throat, andto trim off the corners at the extremities of the tongues.

This device is designed more especially for clover-machines, but is ofcourse applicable in any kind of a seed-separator where a similardetainer may be employed.

The tool G G may be made in asingle piece. The blade of the tool is soshaped and is of such a size that at one operation it cuts out one ormore of the throats, and cuts at least half-way across the extremitiesof each of the two adjacent tongues.

We do not herein claim the cutting tool or implement, as suchconstitutes the subjectmatter of Letters Patent No. 302,759, issued tous July 29, 1884.

What We claim is 1. A detainer for a clover machine or separator,consisting of a strip of material, B", provided at its edge with tonguesB and throats B", the extremities of the tongues being dressed away atthe corners and the bottoms of the throat left full at the corners,substantially as and for the purposes described.

2. A detainer for a clover machine or separator, consisting of a stripof material, B ,p1'ovided at its edge with tongues B, rounded at theirextremities, and throats B rounded at the bottom, substantially as andfor the purposes described.

3. A detainer for a clover machine or sepa rator, consisting of a stripof material having tongues B at its edge, said tongues being providedwith rounded corners at their outer extremities, substantially asdescribed.

4. A detainer for a clover machine or separator, consisting of a stripof material having tongues B at its edge, the throats between thetongues being provided with rounded inner edges or bottoms,substantially as described.

5. The combination, in a detainer for a do ver machine or separator, oftwo pieces of leather having tongues B at their edges, with washers andrivets passing through the two pieces 'of leather and headed on thewashers, substantially as described.

6. A detainer fora clover machine or separator, consisting of two pliesof material united together, with their adjacent surfaces in contact andformed integral with coincident tongues B at their edges, saidcoincident tongues being in contact, substantially as described.

In testimony whereof we sign this specification in the presence of twowitnesses.

ABRAHAM MILLER. JOHN N. KAILER.

Vitnesses:

CHARLES C. GRASSER, ELMER E. STIMMEL.

